| 摘要 |
PURPOSE:To easily conduct installation on uneven surfaces such as steps, and provide space reduction at an installation site and labor saving largely at the time of installation movement. CONSTITUTION:There are provided two traveling carriages 1a, 1b provided with four crawlers 2 which can rotate independently in a vertical direction at the front, rear, right, and left respectively, a lifting device 7 installed on a guide rail 6 which is in a roughly arc shape and installed at the upper part of the respective traveling carriages so as to travel, a working floor 9 which is installed at the upper end of the lifting device 7 through an elastic supporting device 8, and a footing plate 25 which is stored in the working floor 9 so as to be drawn freely and formed so that the top ends may be connected with each other. |
